Safety device.



M. J. BOTTINELLI.

SAFETY DEVICE.

APPLICATION FILED APILQ, I9I4.

1,139,839 I PaIenIeII May 18, 1915.

"ff-)Mlm IVI. J. BOTTINELLI.

SAFETY DEVICE.

APPLlcATloN FILED APR.9, 1914.

MH L H 'UNITED STATES ATENT OFFICE.

MICHELEJ. Bo'rTINEILLr, or mannose, inane.

SAFETY envien.'

To all whom it may concern:

Be' it known that '1,7MICHELE Borri NELLI, a citizen of theUnitedStates, residing at Kellogg, inthe county/"of- Shoshone andStateof Idaho, have invented' new and useful improvements ina SafetyDeaf'ices,I of

which the following is a specification.

Thisinvention relates to a safety device.

.The purpose of the present inyiitiii to produce a simple,substantial,and cheaply manufactured safety device, Zwhich isconstructed with the object in yiew of averjting such accidents as areliable tdoccilr in connection with the breaking "f cables in mines, orthe parting of belts in machine shops when theV lacingv gives way. rlhebreaking of a cable is generally preceded by the wearing away orbreaking of' one or more of the strands of which it is com osed, vandthe parting of a belt is similar y preceded' by a weakening or partingof 1the lacing which, if taken in time, would prevent the final breakand accident'sthat are lliabletoy take place in connection with,same.A

An object of the present invention is to provide a safety device whichis capable of detecting any 'flaw in the cable or belt and give anaudible or visible sign inconnection therewith. The operator will thus"be warnedA in suiiicient timeto shut down and make the necessaryrepairs. Other objects will hereinafter appear.

The invention"co1 1sists of the parts and the construction andcombination of parts as hereinafter more ez fully describedv and.

enlarged view of the releasing device. Fig.

3 is a diagrammatic vie'w,"`s howing the electrical circuit controlledby the safety device.

Referringl to the drawings, A. indicates a pulley; B Va belt; and C thesafety device; as applied. Ihesafetydevice in general conf sists of alever 2, pivotally mounted,`asat 3, in a *suitable frame or standard 4.'Secured in one'end of the lever isa feeler rod 5, composed of a shortlength of thin wire, and formed on the opposite end ofthe lever is ahooklike projection 6 which isx adapted to interlock with a notch 7formed in a pulley 8 which is journaled, asat 9, inthe upelper end ofthe standard 4. The standard 1n 'y this instance is represented by Vapipe or tube which is carried by an electric switch,

Specicatien of Letters Patent.

Patented May 1S, 1915. @wenn es een we Seel 1e este t imitated at 1o..This Switch'consists Qf a base '10, upon which is mounted a pair ot:ber plates 'l1 and' 12, and.l interposed' between said plates lisaglass tube 13,said plates, tube, and base being secured together bybolts '14.

Sflied, t0 plete ,11, interior 0f tube is Aa'pair of spring contactmembers 15, and suspended by a cord 16, secured tothe pulley 8, isa tube17,' throigh the'lower ,end

l@le

of which projects a pointed carbonf'rd 1 8. z The tube is otherwisefilled with aA heavy material, suchas lead or the like, indicated 'at19?, to lgive it sufficient weight, when re-f leased, to force thecarbonpoint. 18 'in be@ tween the points of the spring members i to close acircuit through same=- 1 Fig. 3 is a diagram showing the position -ofthe switch D in the electrical circuit controlled saine. Circuit can betraced as follows: 2 0 indicates a battery,

or other suitablesource of electric supply, "if" 21 indicates the'.Ostseite Wire, and 22 indcates the return; a L suitable forni ofsignaling device 23, such as a bell, light or other device, beingconnectedy on wire22. 'Switch the main circuit wires 2l and 22respectively and is, therefore, adapted toclose apirclit through saidwires, vwlneifi short circuited j 'D is Conneiited-thbugh W'lls 24 and25.*: with carbon 18'. A; circuit thus close d will eitl1' e l*' i ringthe bell, when such a device 1s used, di's.

play a visible signal, or perform other du- 'I i y Aties for which it'may' be intended. ";V Silitable number lof switches, such as indicatedat 26, may alsobe in a circuit and the purr. Se en@ sperati@ will be'later" ele-` scribed. I

The operation of the safet device, ltogether with 'switch D lcontrol edby same,

AThe pulley thus released Will bev free to turn and will consequentlypermit carbon v18 to drop down into engagement with the spring contact',thus closing the circuit .through wires 24 and 25 which connect withthe'main circuit wires 21 and 22. A circuit is thus established throughbattery, or any other source of supply, causing an alarm to be giveneither by a bell 23, or any other device, which `may be controlled bysaid circuit. JFor instance, Where an electric motor drive is used in amachine shop, as indicated at 30, it Would be possible to connect switchD in circuit with a magnet 3l, or like device, Which could be connectedwith the trip switch 32 on the main circuit. rllhe closing of thecircuit through switch D Would in that instance actuate the trip switchand immediately stop the motor. rlthe operator Will thus immediatelyknow that a strand has parted, or that the belt lacing is beginning togive Way and will thus be given opportunity to malle the necessaryrepairs.

The eeler arm, indicated at 5, can be placed in very close proximity tothe face off a rope transmission or a belt and the arm can in allinstances be suiliciently'long to cover the tace orp the belt ortransmission. 'lhe safety device, With connected switch, may be placedpractically in any position as it is only necessary to lengthen orshorten the standard el to suit various conditions of height. l

A suitable number o switches, such as indicated at 26, may also beplacedon the main circuit indicated at 2l and 22. 'lliese are particularlyuseful Where an electric motor drive is used and controlled by switch l)ltor instance, in the case Where a Workmans clothing becomes entangledin a set orP gears or Where some similar accident should take place itWould be very easy for a fellow Workman seeing the predicament to closeone of these small switches nearest to him. rl`he machinery would thusimanediately come to a standstill without the operator running to themotor rooin to throviT out the main switch. Also it a number o' nien aredoing` repair Work in the plant While it is shut down for repairs, oneor lore of these switches may be closed, ano. with one of these switchesclosed it will be impossible for anyone to start the motor and lriil, oreven injure, the m While theyare busily engaged Wita. ufo'flr.

he materials and finish of the sevez parte of the device are such asexperience and judgment of the manufacturer may dictate.1 f

T '.l. '3 lL .1." J. 1 '2 i vvish it understood that various cna inform, proportions and minor de construction may be resorted to Withinscope ors the appended claims, and not vvish to limit mysel to thespecific sign and construction here shown.

standard, a iteeler arm secured on one end of Having thus described myinvention, what ll claim and desire to secure by Letters Patent is-A El,lin' a safety device, the combination of a standard, an arm pivotallymounted in said standard, a eeler arm secured on one end ozt thepivotedam, a hook termed on the other endfor" the arm, a pulley journaled inthe standard having a catch termed thereon with which the hooked end ofthe arm is adapted to engage, and means controlled by the pulley forclosing anelectric circuit.

2. ln a safety device,'the combination of a standard, an arm pivotallymounted in said Standard, a eeler arm secured on one end 7 ot thepivoted arm, a hoolt formed on the other end of the arm, a pulleyjournaled in the standard having a catch formed thereon with which thehooked end of the arm is adapted to engage, a coro secured to the apulley, a Weight on the cord, and means controlled by the Weight forclosing` elec ic circuit.

3. a safety device, the combination of a standard, arm pivot-allymounted in 3 said standard, eeler secured on one end of pivoted arm, ahook formed on the other end of the arm, a pulley journaled in standardhaving catch formed thereon which the hooked end of the arm is o adaptedto engage, a cord secured to the pulley, a Weight on the cord, a carbonsecured on the end orc the Weight, a pair of flexible contact memberswith Which the carbon is adapted to engage, and an electric circuitcontrolled by said contact members.

d. ln a safety device, the combination of a standard, an arm pivot-allymounted in the the standard, latch engagea-ble W'th the other ot arm,means controlled by the arm for by said latch when released closing` anelectric circuit. 5. a safety device, a standard, pivot-ank;

the -st closing; an electric cro ln testimonv Where@ -J nave 'thepresence o; tvvo suoeciA Y non

